EP3578439A1 - Châssis de construction légère - Google Patents

Châssis de construction légère Download PDF

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Publication number
EP3578439A1
EP3578439A1 EP19179560.8A EP19179560A EP3578439A1 EP 3578439 A1 EP3578439 A1 EP 3578439A1 EP 19179560 A EP19179560 A EP 19179560A EP 3578439 A1 EP3578439 A1 EP 3578439A1
Authority
EP
European Patent Office
Prior art keywords
profiles
longitudinal
module
vehicle
vehicle chassis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19179560.8A
Other languages
German (de)
English (en)
Other versions
EP3578439B1 (fr
Inventor
Ria Kaiser
Martin Weltjen
Ole Kasten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Erwin Hymer Group SE
Original Assignee
Hymer Business Development GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hymer Business Development GmbH filed Critical Hymer Business Development GmbH
Publication of EP3578439A1 publication Critical patent/EP3578439A1/fr
Application granted granted Critical
Publication of EP3578439B1 publication Critical patent/EP3578439B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/10—Understructures, i.e. chassis frame on which a vehicle body may be mounted in which the main member is plate-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/041—Understructures

Definitions

  • the invention relates to a vehicle chassis for a land vehicle, in particular for a motorhome or recreational vehicle, wherein the vehicle chassis is constructed in lightweight construction.
  • Lightweight vehicle chassis are from the prior art, for example from the WO 2014/096445 known.
  • a front chassis module in particular a drive head, and a rear chassis module, preferably made of lightweight construction, are connected to one another via flange means.
  • the rear chassis module in this case comprises load-bearing components, which, however, are usually constructed in the prior art as a metal side member or as a lightweight construction of longitudinal and transverse member components.
  • a disadvantage of known lightweight chassis is that the use of metal side rails still makes a significant contribution to the overall weight of the chassis, and that the use of lightweight side rails makes the use of additional cross-links necessary to give the chassis the necessary structural stability.
  • Object of the present invention is to provide a chassis made of lightweight materials, which works without or only with a minor number of cross members, which preferably have no supporting properties in terms of the static of the chassis.
  • the vehicle chassis according to the invention in particular for a motorhome, comprises a front chassis module, in particular a drive head and a rear chassis module.
  • the front chassis module is above the rear chassis module at least a flange connected to form the entire vehicle chassis.
  • the load-bearing components of the rear chassis module are constructed of lightweight construction materials and designed according to the invention as longitudinal profiles, in particular as Z-profiles.
  • the use of lightweight construction material profiles as longitudinal members offers considerable weight reduction with comparable stability to the classic metallic side members.
  • the profiles generally have no exclusively flat components, but are formed in cross-section by two-dimensional structures, so that they also have profile sections running parallel to the underbody or running floor of a vehicle.
  • Lightweight construction materials can be laminates and drawn structures made of composite materials or sandwich constructions made of different materials.
  • the Z-profile represents a subcategory of the angle profiles. It is a long component whose cross-section is similar to the letter Z. In this case, a substantially vertically arranged section extends between two arms which protrude in different horizontal directions (for example to the left and right) at different ends of the vertical section. From the steel construction Z-profiles are known.
  • Z-profiles in cross-section Z-shaped
  • the rear chassis module also includes a combination of a sub-module structurally supported by the longitudinal profiles and further modules, wherein the further modules, for example an axle module or a rear garage module, do not necessarily have to be traversed by the supporting profiles, in particular Z-profiles.
  • the further modules for example an axle module or a rear garage module
  • Such modular structures are the subject of other applications of the Applicant.
  • the supporting components comprise at least two, preferably four longitudinal profiles.
  • the rear chassis module is designed to be free of cross members as load-bearing components.
  • the rear chassis module comprises an outer and at least one inner longitudinal profile on both longitudinal sides, wherein the outer longitudinal profile terminates an outer edge of the lower base and the inner longitudinal profile has a distance from the outer longitudinal profile.
  • the spacing of the longitudinal profiles can be selected such that they are entirely open Crossbeam can be omitted without compromising the stability of the tread or the subfloor.
  • the longitudinal profiles may have different heights, at least partially in the vertical direction, whereby different attachment levels can be realized on the top and / or bottom.
  • different subsurface levels or topsoil levels are feasible.
  • a further expedient embodiment provides that the longitudinal profiles designed as Z-profiles are arranged such that they are mirrored at a vertical plane of symmetry in the middle of the vehicle.
  • the longitudinal profiles are spaced from each other in such a way that even storage spaces are formed between the longitudinal profiles.
  • the longitudinal profiles are formed as Z-profiles, wherein at least two adjacent Z-profiles, preferably two adjacent Z-profiles are arranged mirror-symmetrically opposite each other in the horizontal direction, and at an upper or lower Z. -Shank overlap at least partially.
  • a development further provides that at least two adjacent longitudinal profiles, in particular Z-profiles, are connected to one another, in particular glued and / or screwed and / or riveted.
  • connection of adjacent longitudinal profiles by gluing, screwing or riveting makes it possible to advantageously reinforce the static properties of the chassis, as far as individual profiles can not or only insufficiently ensure this.
  • the longitudinal profile includes at least one cavity, in particular formed as an extruded Z-profile.
  • Z profiles can not only be in the form of beveled longitudinal profiles. Rather, Z-shaped profiles may be provided with a cavity, on the upper wall of a lateral arm in which a horizontal direction (eg to the left) and on the lower wall of a boom in the other horizontal direction (eg right) protrudes.
  • these profiles provide the functionality already described above for receiving and fastening floor elements and / or power-train connections; on the other hand, they are extremely stable and can absorb defined forces as static support elements along the vehicle chassis and introduce them into the chassis components (eg power train, axle mount).
  • a vehicle chassis 1 which comprises a front chassis module 2 in the form of a driving head and a rear chassis module 3.
  • the rear chassis module 3 is constructed from three sub-modules, the frame module 4, the axle tray module 5 and the rear module 6.
  • the front chassis module 2 is connected to the frame module 4 of the rear chassis module 3 via flange means 7a and 7b.
  • the flange means 7a and 7b engage the load-bearing longitudinal profiles 8a and 8b of the frame module 4 and thus connect the rear chassis module 3 to the drive head.
  • the longitudinal profiles 8a and 8b are arranged as Z-profiles on the outer edge of the frame module 4.
  • the upper legs 9a and 9b of the Z-profiles 8a and 8b respectively point outwards so as not to interfere with internal storage space.
  • additional Z-profiles 10a and 10b are provided in each case offset inwards, which further reinforce the load-bearing properties of the frame module 4.
  • the Z-profiles 10a and 10b have with their upper legs 11a and 11b inward so as not to hinder the storage space between the adjacent outer Z-profiles.
  • a storage space is provided, in which present a fresh water tank 12 is arranged. Accordingly, a storage space is provided between the Z-profiles 8b and 10b, in which present a dirty water tank 13 is arranged.
  • Other types of storage space use are of course conceivable.
  • a battery box or a box 30 is provided for sensitive equipment or electronics, which is protected by the double shielding of the Z-profiles particularly against a lateral impact, for example by a vehicle collision.
  • the Z-profiles 8a and 8b and 10a and 10b terminate in front of the Achswannenmodul 5 and possibly still serve for connection and static force of the axle pan module 5 in the frame module 4.
  • the profiles for this purpose can still easily protrude into the axle tray module 5 or if necessary, depending on which static properties and what structure the lightweight chassis for the vehicle in question and the desired structure 5 must.
  • the Fig. 2 shows in exploded view the components of Fig.1 , The same components are provided with the same reference numerals.
  • the Fig. 3 shows an alternative arrangement of the Z-profiles for forming a rear chassis module or a frame module 20.
  • an underbody 23 is inserted into two outer Z-profiles 21a and 21b, whose lower legs 22a and 22b are arranged facing each other. Placed on the subfloor 23, two further Z-profiles 24a and 24b are arranged in the same orientation to the profiles 20 21a and 21b. Depending on which storage space arrangement is desired, the legs of the profiles 24a and 24b can point in the same direction as those of the profiles 21a and 21b or facing them.
  • the profiles 24a and 24b are formed shorter in their vertical dimensioning by the thickness of the subfloor 23 to allow the upper legs of the Z-profiles 21a and 21b and those of the Z-profiles 24a and 24b to lie in one plane.
  • a planar arrangement of an upper floor (not shown 30) or a running floor (not shown) is possible.
  • Flange means 25a and 25b are respectively provided at the front ends of the Z-profiles 21a and 21b for connecting the chassis module and the frame module, respectively, to a power head.
  • the Fig. 4a shows a schematic representation of an arrangement of two Z-profiles 40 and 41, which in the present case are assembled into a kind of "U-profile".
  • the advantages of a corresponding arrangement are set forth above.
  • the Z-profiles 40 and 41 overlap at their lower legs 42 and 43 and are presently interconnected by an adhesive layer 44 arranged between the surfaces of the lower legs 42 and 43.
  • the upper legs 45 and 46 of the two Z-profiles 40 and 41 are away from one another and can thus serve as a preferred support for eg a walking floor.
  • the Fig. 4b shows an alternative schematic representation of an arrangement of two Z-profiles 50 and 51.
  • the Z-profiles 50 and 51 are present parallel to each other arranged.
  • the Z-profile 50 lies under the Z-profile 51.
  • the lower leg 53 of the Z-profile 51 rests on the lower leg 52 of the Z-profile 50.
  • an adhesive layer 54 is formed for connection.
  • the upper leg 56 of the Z-profile 51 rests on the upper leg 55 of the Z-profile 50, wherein an adhesive layer 57 is also provided between these legs.
  • a cavity 58 is created in this way, which e.g. can be used for the arrangement of lines or the like.
  • this construction similar to the above-described U-shaped arrangement achieves a particular stability and can thus form the improved vehicle chassis according to the invention.
  • the Fig. 5a shows a sectional view through a Z-profile 60 with an internal cavity 61st
  • the Fig. 5b shows a section of this profile as a perspective view.
  • the profile comprises a longitudinal cavity 61, which is formed as a combination of two Z-shaped geometries 62 and 63, shown here in dashed lines, connected to their respective horizontal arms.
  • the Z-profile 60 with cavity 61 is preferably formed integrally.
  • the cavity 61 is free of interruptions in the form of transverse or longitudinal webs.
  • the Z-profile 60 as well as the purely made of sheet material, described above Z-profiles, a vertically extending portion 64 and two horizontal arms 65 and 66, which protrude in different directions from the section 64 on.
  • the advantages described above e.g. the inclusion of a floor element and the formation of static-bearing components in chassis construction are met.
  • the Fig. 5c shows a sectional view through a Z-profile 70 with an internal cavity 71st
  • the Fig. 5b shows a section of this profile as a perspective view.
  • the profile comprises a longitudinal cavity 71, which as a combination of two Z-shaped geometries 72 15 and 73, shown here in dashed lines, connected to their respective horizontal arms, is formed.
  • the Z-profile 70 with cavity 71 is preferably formed integrally.
  • the Z-profile 70 as well as the purely made of sheet material, described above Z-profiles, a vertically extending portion 76 and two horizontal arms 77 and 78, which protrude in different directions from the portion 76 on.
  • the advantages described above e.g. the inclusion of a floor element and the formation of static-bearing components in chassis construction are met.
  • the cavity 71 is at least partially traversed by an interruption in the form of a transverse web 74 on half of its vertical extent. Through the interruption 74, an upper cavity portion 71a and a lower cavity portion 71b is formed.
  • the crossbar 74 achieves a further stabilization of the Z-profile, on the other hand, the cavity can also be used for different functions for the passage of lines or the like, which are to be separated from one another.
  • a central arm 75 is formed in the extension of the transverse web 74 in the extension of the transverse web 74 is present on the right side of the Z-profile 70, parallel to a lower arm 78.
  • the middle boom 75 can also serve to receive floor elements and fulfill other static functions. It is also provided, but not shown herein, that the boom 75 is disposed on the other side, parallel and below the upper boom 77 of the Z-profile. Also, a two-sided arrangement is conceivable.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Body Structure For Vehicles (AREA)
EP19179560.8A 2018-06-08 2019-06-11 Châssis de construction légère Active EP3578439B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018113731.1A DE102018113731A1 (de) 2018-06-08 2018-06-08 Leichtbau-Chassis

Publications (2)

Publication Number Publication Date
EP3578439A1 true EP3578439A1 (fr) 2019-12-11
EP3578439B1 EP3578439B1 (fr) 2022-08-17

Family

ID=66826849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19179560.8A Active EP3578439B1 (fr) 2018-06-08 2019-06-11 Châssis de construction légère

Country Status (2)

Country Link
EP (1) EP3578439B1 (fr)
DE (1) DE102018113731A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3964392A1 (fr) * 2020-08-27 2022-03-09 Niesmann+Bischoff GmbH Camping-car

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020132604A1 (de) 2020-12-08 2022-06-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Profilträger für ein Tragprofil eines Kraftfahrzeugs und Verfahren zur Herstellung eines Tragprofils

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012012603U1 (de) * 2012-08-23 2013-08-01 Ackermann Fahrzeugbau Oschersleben Gmbh Fahrzeugrahmen
US20140049033A1 (en) * 2012-08-17 2014-02-20 Daimler Trucks North America Llc Composite box frame
WO2014096445A1 (fr) 2012-12-21 2014-06-26 Hymer Aktiengesellschaft Châssis léger
WO2014121856A1 (fr) * 2013-02-07 2014-08-14 Al-Ko Kober Se Châssis de véhicule
EP3239022A1 (fr) * 2016-04-28 2017-11-01 Alois Kober GmbH Composite de plateforme

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140049033A1 (en) * 2012-08-17 2014-02-20 Daimler Trucks North America Llc Composite box frame
DE202012012603U1 (de) * 2012-08-23 2013-08-01 Ackermann Fahrzeugbau Oschersleben Gmbh Fahrzeugrahmen
WO2014096445A1 (fr) 2012-12-21 2014-06-26 Hymer Aktiengesellschaft Châssis léger
WO2014121856A1 (fr) * 2013-02-07 2014-08-14 Al-Ko Kober Se Châssis de véhicule
EP3239022A1 (fr) * 2016-04-28 2017-11-01 Alois Kober GmbH Composite de plateforme

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3964392A1 (fr) * 2020-08-27 2022-03-09 Niesmann+Bischoff GmbH Camping-car

Also Published As

Publication number Publication date
DE102018113731A1 (de) 2019-12-12
EP3578439B1 (fr) 2022-08-17

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